Résumé:
This s tudy aims to follow the antimicrobial effect of the hydroethanoli c extract of
LaurusnobilisL., (Laurie r) on the microbiological quality of broiler meat during cold s torage.
The lea ves of Laurusnobilis (Laurel) were collected in the region of Mos taganem. The
extraction was carried out by maceration of a ground mixture of dried bay lea ves for 6
hours in an aqueous e thanol solution. The hydroethanoli c extract obtained after filtration
and e vaporation was added in tripli cate a t a rate of 0, 1 and 2% on 300g pieces of broiler
pectoral meat, ea ch distributed in a polys tyrene tray. Mea ts, whether or not trea ted with
bay leaf extract, were then s tored at 4 ° C for 9 days. The microbiological analyzes carrie d
out on the experimental samples during s torage concerned the enumeration of : total
ge rms , fecal coliforms , Staphylococcus aureus and pseudomonas. The resul ts were
subjected to a randomized a nalysis of variance and a comparison of means two by two
according to the tes t of Newman and Keuls.
Before the 3rd day of s torage a t 4 ° C, the microbiological quality of the broiler meat
enriched with hydroethanoli c extract of Laurusnobilus L. a t 2% as a natural additive was
clea rly prese rved.
However, the duration of cold s torage of chicken pectoral mea t cannot exceed 3 da ys of
s torage during and beyond whi ch a s trong contamination with Staphylococcus aureus and
Pseudomonas seems to be decla red.
